main() => 1?.{};
main() => 1?.{ 1; };
main() => 1?.=> 1;
main() => 1?.(p) {};
main() => 1?.(p) { 1; };
main() => 1?.(p) => 1;
main() => 1?.(int p) {};
main() => 1?.(int p) { 1; };
main() => 1?.(int p) => 1;
